[mythtv-users] nuvexport mpeg4 to mpeg2 but no video

Chris Germano netslayer at hotmail.com
Sat Jul 24 05:51:37 EDT 2004


I'm trying to convert recorded mpeg4 nuv files to mpeg2 using a DVD profile 
so I can eventually burn these to DVDs. I'm using nuvexport, current as of 
today and mythtv CVS current as of last week. Using nuvexport I select the 
recording, then the export DVD mode, use all the default values and it 
starts. It finishes the mp2 audio fine as that is the only thing in the file 
at the end. I receive an .mpeg file without any video, or just the first 
frame .. any ideas?

Also I notice down below in the output that it states: "INFO: profile type 
is (PAL)" where can I change this, I don't want PAL, I need NTSC? could this 
be causing my problems?

I've also using myth's built in transcoder on screen to transcode the 
recording in hopes of fixing any capture problems with the same profile but 
it hasn't helped this time around.

snip ...
INFO: [yuvscaler] yuvscaler 1.6.1.90 (10-02-2003) is a general scaling 
utility for yuv frames
   INFO: [yuvscaler] (C) 2001-2003 Xavier Biquard <xbiquard at free.fr>, 
yuvscaler -h for help, or man yuvscaler
   INFO: [yuvdenoise]  
========================================================
   INFO: [yuvdenoise]          Y4M2 Motion-Compensating-YCrCb-Denoiser
   INFO: [yuvdenoise]  
========================================================
   INFO: [yuvdenoise]  Version: MjpegTools 1.6.1.90
Input #0, rawvideo, from '/tmp/fifodir.11547/vidout':
  Duration: N/A, bitrate: N/A
  Stream #0.0: Video: rawvideo, yuv420p, 720x480, 29.97 fps
Output #0, yuv4mpegpipe, to 'pipe:':
  Stream #0.0: Video: rawvideo, yuv420p, 720x480, 29.97 fps, q=2-31, 200 
kb/s
Stream mapping:
  Stream #0.0 -> #0.0
Press [q] to stop encoding
   INFO: [mpeg2enc] Selecting DVD output profile
   INFO: [mpeg2enc] Encoding MPEG-2 video to 
1005_20040724022600_20040724022600.m2v
   INFO: [mpeg2enc] Horizontal size: 720 pel
   INFO: [mpeg2enc] Vertical size: 480 pel
   INFO: [mpeg2enc] Aspect ratio code: 2 = 4:3 display
   INFO: [mpeg2enc] Frame rate code:   4 = 30000.0/1001.0 (NTSC VIDEO)
   INFO: [mpeg2enc] Bitrate: 2358 KBit/s
   INFO: [mpeg2enc] Quality factor: 5 (Quantisation = 5) (1=best, 31=worst)
   INFO: [mpeg2enc] Field order for input: none/progressive
   INFO: [mpeg2enc] New Sequence every 795 Mbytes
   INFO: [mpeg2enc] Assuming non-video stream of 384 Kbps
   INFO: [mpeg2enc] Search radius: 16
   INFO: [mpeg2enc] GOP SIZE RANGE 9 TO 15
   INFO: [mpeg2enc] Setting colour/gamma parameters to "unspecified"
   INFO: [mpeg2enc] Progressive format frames = 1
   INFO: [mpeg2enc] Setting hi-res intra Quantisation matrix
   INFO: [mpeg2enc] Buffering 39 frames
   INFO: [mpeg2enc] SETTING 3DNOW and EXTENDED MMX for QUANTIZER!
   INFO: [mpeg2enc] SETTING EXTENDED MMX for MOTION!
   INFO: [mpeg2enc] SETTING MMX for TRANSFORM!
   INFO: [mpeg2enc] SETTING EXTENDED MMX for PREDICTION!
   INFO: [yuvdenoise]
   INFO: [yuvdenoise]  Denoiser - Settings:
   INFO: [yuvdenoise]  --------------------
   INFO: [yuvdenoise]
   INFO: [yuvdenoise]  Mode             : Progressive frames
   INFO: [yuvdenoise]  Deinterlacer     : On
   INFO: [yuvdenoise]  Postprocessing   : On
   INFO: [yuvdenoise]  Y frame size     : w:720 h:480
   INFO: [yuvdenoise]  CbCr frame size  : w:360 h:240
   INFO: [yuvdenoise]  Frame border     : x:  0 y:  0 w:720 h:480
   INFO: [yuvdenoise]  Search radius    :  16
   INFO: [yuvdenoise]  Y  Filter delay     :   3
   INFO: [yuvdenoise]  Cr Filter delay     :   3
   INFO: [yuvdenoise]  Cb Filter delay     :   3
   INFO: [yuvdenoise]  Y  Filter threshold :   5
   INFO: [yuvdenoise]  Cr Filter threshold :   5
   INFO: [yuvdenoise]  Cb Filter threshold :   5
   INFO: [yuvdenoise]  Pass 2 threshold :   4
   INFO: [yuvdenoise]  Y - contrast     : 100 %
   INFO: [yuvdenoise]  Cr/Cb - contrast : 100 %
   INFO: [yuvdenoise]  Sharpen          : 125 %
   INFO: [yuvdenoise]
   INFO: [yuvdenoise] Using 4:2:0 extended MMX SIMD optimisations.
--------------------------------------------
Input File : 'stdin'   48.0 kHz
Output File: '1005_20040724022600_20040724022600.mp2'
384 kbps MPEG-1 Layer II j-stereo Psy model 1
[De-emph:Off    Copyright:No    Original:No     CRC:Off]
[Padding:Normal Byte-swap:Off   Chanswap:Off    DAB:Off]
ATH adjustment 0.000000
--------------------------------------------
frame=    3 q=0.0 size=    1519kB time=0.1 bitrate=124296.4kbits/s
   INFO: [mpeg2enc] GOP start (3 frames)
   INFO: [mpeg2enc] Frame end 0 I quant=19.69 total act=   185.5
Hit end of audio data
Avg slots/frame = 1152.000; b/smp = 8.00; bitrate = 384.000 kbps

Done
   INFO: [mpeg2enc] Frame end 1 P quant=6.83 total act=   217.6
   INFO: [mpeg2enc] Frame end 2 B quant=6.06 total act=   238.3
   INFO: [mpeg2enc] GOP start (0 frames)
   INFO: [mpeg2enc] Guesstimated final muxed size = 64081


INFO: using reference profile (DVD)
INFO: profile type is (PAL)

INFO:
INFO:   Scanning video stream for a sequence header and pulldown type ...
INFO:     no pulldown detected ...
INFO:
INFO:   Scanning video stream for pictures ...
*** Scanning video stream: 99% - byte offset 58937 of 59277. (99)%
INFO:   Found 3 picture headers, stream bit offset 474216.
INFO:   Video stream information
INFO:     Stream length : 59277
INFO:     Total time (seconds) : 0
INFO:     Sequence start : 1
INFO:     Sequence end : 1
INFO:     No. Pictures : 3
INFO:     No. Groups : 1
INFO:     No. I Frames : 1 avg. size 30347 bytes
INFO:     No. P Frames : 1 avg. size 19307 bytes
INFO:     No. B Frames : 1 avg. size 9623 bytes
INFO:     No. D Frames : 0 avg. size 0 bytes
INFO:     Horizontal size : 720
INFO:     Vertical size : 480
INFO:     Aspect ratio : 0.6735
INFO:     Picture rate : 29.970 frames/sec
INFO:     Bit rate : 294750 bytes/sec (2358000 bits/sec)
INFO:     Computed avg rate : 592500 bytes/sec (4740000 bits/sec)
INFO:     Computed max rate : 0 bytes/sec (0 bits/sec)
INFO:     Vbv buffer size : 229376 bytes
INFO:     CSPF : 0
INFO:
INFO:   Scanning audio stream for access units information
ThOe: layer=1 bit_rate=384 freq=48.000000 slots=144

*** Scanning audio stream: 99% - byte offset 1703812 of 1719936. (99)%
INFO:   Found 1493 audio frame headers, stream bit offset 13759488.
INFO:   MPEG audio stream information
INFO:     Stream length : 1719936
INFO:     Syncwords : 1493
INFO:     Frames : 1493 size 1152 bytes
INFO:     Frames : 0 size 1153 bytes
INFO:     Layer : 2
INFO:     CRC checksums : no
INFO:     Bit rate : 48000 bytes/sec (384 kbit/sec)
INFO:     Frequency : 48.0 kHz
INFO:     Mode : 0 stereo
INFO:     Mode extension : 0
INFO:     Copyright bit : 0 no copyright
INFO:     Original/Copy : 0 copy
INFO:     Emphasis : 0 none
INFO:
INFO:   Multiplexing information
INFO:     Video stream data rate : 0 bytes/sec (0 bits/sec)
INFO:     Audio stream 1 data rate : 48000 bytes/sec (384000 bits/sec)
INFO:     Total data rate : 1260000 bytes/sec (10080000 bits/sec)
INFO:
INFO:   Multiplexing file Yes/Yes.mpeg
*** Multiplexing: 99% - 1483 of 1497  A/V units. (99)%
INFO:   Finished multiplexing Yes/Yes.mpeg
*** Multiplexing: 100% - 1497 of 1497  A/V units. (100)%

and that's it... a Yes.mpeg with no video, but just audio




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